Name	Info	Provider	Link
Iron	free resource	MedlinePlus Health Information	https://medlineplus.gov/iron.html
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=19284893.ui
	subscription/membership/fee required	Cambridge University Press	https://www.cambridge.org/core/product/identifier/S1431927609090114/type/journal_article
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:19284893
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/mam/article-lookup/doi/10.1017/S1431927609090114